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    Animated Update Rotation wrong way

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    • P Offline
      pmolsen
      last edited by

      I have an animation driven by AnimatedUpdate. If the model has a heading of 358 degrees and I do an animatedupdate to change the heading to 2 degrees, the model spins round anticlockwise by 356 degrees instead of rotating clockwise by 4 degrees. How do I change that behaviour please?

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      • TIGT Offline
        TIG Moderator
        last edited by

        I don't know the tool, but the standard rotation rule is +ve angles rotate anticlockwise about the axis of rotation.
        Entering +2 tells it to swing from 358 round to 2 anticlockwise !
        If you enter a value like -4 OR +362 degrees what happens, does the rotation reverse to clockwise ?
        Is there no a way to specify the required swept-angle rather than the absolute-angle πŸ˜•

        TIG

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        • P Offline
          pmolsen
          last edited by

          See AnimatedUpdate, Change and Update at
          http://code.google.com/apis/kml/documentation/kmlreference.html

          (If you can figure it out from there good luck!)

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          • TIGT Offline
            TIG Moderator
            last edited by

            Have you tried my suggestions for -ve angle values or > +360 etc πŸ˜•

            TIG

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            • P Offline
              pmolsen
              last edited by

              I did find that I could overcome it by just getting bigger and bigger with the angles. ie. specifying 352 degrees say, then 380 degrees, then 420 degrees etc. It seems to work.

              But I actually used a suggestion Aerilius made, which was to get to 359, then do a change to 0 with a duration of 0 so it spun anticlockwise infinitely fast, then carried on with 20 degrees, 80 degrees etc. That also works.

              But it is all a fudge. Surely there is some way of forcing the rotation to the desired direction.

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